RCMP Chief Superintendent Chris Leather fields questions at a news conference at RCMP headquarters in Dartmouth, Nova Scotia, Monday, April 20, 2020. Investigators say a killer’s use of a mock police cruiser and an RCMP uniform almost identical to the real thing helped him escape detection as he travelled between 16 crime scenes in a rampage that has left at least 19 dead in Nova Scotia. THE CANADIAN PRESS/Riley Smith